Scotland

External Mastic in Stirling

From the largest town to the smallest village in Stirling, we can help with external mastic. A clear quote before we start, and a one-year guarantee.

External Mastic across Stirling

External mastic in Stirling: how it works

A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, so it bonds to the two sides only and can stretch. We’re often asked to deal with rain getting behind render or cladding at a joint and brick movement joints where the sealant has split, across joints between brick and frames, concrete & block and brickwork movement joints.

Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it normally takes anything from a few hours to several days, depending on the building.

  1. We start by walking round the building and agreeing the joints and the access.
  2. Every bit of old sealant and any mortar or debris is cut out.
  3. The faces are brushed clean and primed where the product requires it.
  4. Backing rod sized to the joint goes in to set the depth.
  5. The exterior sealant is applied, tooled and checked along its length.

Pricing in Stirling

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.

Why choose Mr Mastic

  • ARBOMaster approved applicator
  • Tidy, careful work
  • One-year guarantee on every job
  • Trusted Arbo and Everbuild sealants

Ask for a quote

We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, send an email to info@mrmastic.co.uk.

Landmarks near Stirling

We work in homes and buildings around Royal Gardens, Terraces Hotel and Allan Park South Church and the streets around them. There’s a railway station in Stirling itself: Stirling station. Nearby you’ll also find Stirling Health and Care Centre (0.6 miles south) and Thistles Centre (under half a mile east). For a walk, there’s Mote Hill and Airthrey Loch.

Outside joints across Stirling

In Stirling, external mastic work takes in houses, flats and commercial buildings, in Dunblane, St. Ninians and Raploch and well beyond. Outside joints can only be sealed when they’re dry, so the work is planned around the weather.

Our work covers the whole of Scotland, Stirling included. Longer journeys are planned in advance, and outdoor work around the weather. Parts of Stirling are on or near the coast, where wind-driven rain and, closer to the shore, salt air are hard on outside sealant. Joints on seaward walls tend to fail first.

Stirling: If you look after a building such as Wallace High School, its movement joints, gutters and trims need looking after like any other building’s. For landlords with property near Stirling station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.

Signs you need external mastic

A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.

It’s worth asking for a quote if you see:

  • Damp patches traced to an open external joint
  • Joints with sealant missing in places
  • Plants rooting in failed movement joints
  • Sealant pulling away from one side of the joint

How to look after the new joints

Once the sealant has cured, a few habits help it last:

  • Wash walls gently around the sealant
  • Tell anyone working on the walls about the movement joints
  • Act on the first splits you see
  • Make sure movement joints aren’t pointed over

Keep pressure washers away from the sealant. A strong jet can damage the edges of the bead and let water in behind.

Small splits are the time to act. At that stage it’s a simple cut out and reseal.

How we quote for external mastic

Call for a quick quote. The main things that affect it are:

  • Whether the work is at height
  • How much old sealant there is and how hard it is to remove
  • Any mould that needs treating
  • The product the joint needs

Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

What we need to know

What to tell us when you ask for a quote:

  • Where the property is
  • The rough size of the job
  • The problem you’ve noticed
  • Any access issues, like height or stairs

Every job is quoted individually, so start by telling us what you need. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.

When it isn’t the sealant

It helps to know what we cannot do too:

  • Subsidence or other structural problems
  • Failed render or damaged cladding panels
  • Adding movement joints to masonry that has none

How the job changes by surface

Joints between dissimilar materials

Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant so the movement is taken up.

Render joints

Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.

Stirling: your questions answered

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.

What do you need from me for a quote?

Where the job is, what the problem is and roughly how big it is. Photos by email help too.

Why is there a gap in my brick wall?

Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking.

How do you reach high-level joints?

It depends on the height and the site. Low-level joints are straightforward; for higher work, tell us about the building and we will confirm what’s needed.

Can tenants book the work?

Yes, though it’s best to check with your landlord first. Many landlords are glad to have it sorted.

Is it OK to fill a movement joint with cement?

No. Rigid materials can’t move with the wall and the joint fails. Where a joint has been mortared, it can often be raked out and sealed properly.

Why do you put foam in the joint first?

We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding so the bead can stretch.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job